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ZFS New Rule of Thumb

ZFS New Rule of Thumb

About ZFS Performance

https://www.percona.com/blog/2018/05/15/about-zfs-performance/

So, let’s proposed a new rule of thumb for the required ARC/L2ARC size for a a given dataset:
  • Recordsize of 128KB => 0.1% of the uncompressed dataset size
  • Recordsize of 64KB => 0.2% of the uncompressed dataset size
  • Recordsize of 32KB => 0.4% of the uncompressed dataset size
  • Recordsize of 16KB => 0.8% of the uncompressed dataset size

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